Environmental Chemistry NDA Questions

NDA Chemistry

Environmental Chemistry MCQ Questions


1.
How many Gaseous are there in air pollutants ?
A.
Ten
B.
Five
C.
Six
D.
Twelve
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ANSWER :
C. Six
2.
Which oxide causes irritation to the eyes, resulting in tears and redness?
A.
Carbon Dioxide
B.
Sulphur Dioxide
C.
Hydroxide
D.
Ozone
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ANSWER :
B. Sulphur Dioxide
3.
Atmosphere pollution is concentric layers of _____________, and each layer has a different density.
A.
Water or Soil
B.
Air or Water
C.
Air or Regions
D.
Plants or Animals
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ANSWER :
C. Air or Regions
4.
What is sulphur dioxide that is poisonous to both animals and plants?
A.
Petrol
B.
Coal
C.
Diesel
D.
Gas
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ANSWER :
D. Gas
5.
How many times an average human being requires nearly more air than the food?
A.
12-15 Times
B.
22-25 Times
C.
3-7 Times
D.
11-16 Times
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ANSWER :
A. 12-15 Times
6.
How much harmful UV radiation of ozone in the stratosphere reaches the Earth's surface?
A.
95%
B.
99.50%
C.
83%
D.
26%
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ANSWER :
B. 99.50%